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In a chemical plant a solution of density 1100kg/m3 and specific heat capacity 4.6 kJ/kg-Kis to be heated from 65 OC to 100OC. The required flow rate of the solution is 11.8 kg/s. Atubular heat exchanger is used for this with the solution flowing about 1.2 m/s in 25 mmbore iron tubes and being heated by wet steam at 115OC. The length of the tubes is not toexceed 3.5m . Taking inside, and outside heat transfer coefficient as 5 and 10kW/m2 and neglecting the thermal resistance of the tube wall estimate the number of tubes and the number of tube passes required
over a certain temperature interval the saturation pressure-temperature curve of a substance is represented by an
Refrigerant 134a enters a compressor operating at steady state as saturated vapor at 0.12 MPa and exits at 1.2 MPa and 708C at a mass flow rate of 0.108 kg/ s. As the refrigerant passes through the compressor, heat transfer to the surroundings occurs..
The rigid 24-kg bar AB is in equilibrium in the position shown. Determine the damping coefficient c for which the bar would be critically damped for small oscillations.
BCEE 344 STRUCTURAL DESIGN-Choose the lightest W-shape for column AB, this column is supported laterally at node A and B, consider P- effect;Choose the lightest W-shape for beam BC, this beam is supported laterally at node B and C;Design bolted doubl..
Calculate the magnitude and direction of the velocity of the fluid leaving the vane and determine the operating point for this pump with system.
in an oil refinery methane gas ch4 enters a compressor at a steady rate of 0.9 kgs and at a pressure 2 bar temperature
two wires have the same length and the same resistance. one is made from gold and the other from tungsten. obtain the
helium gas expands in an adiabatic turbine from 2 mpa and 750degc to 0.18 mpa at a rate of 1.5 kgs. assuming constant
Calculate the maximum shearing stresses in the cross-section and draw a profile of these shearing stresses showing their magnitudes at the critical points
refrigerant 22 is used in the evaporator pipe of a commercial refrigeration unit. at steady state it flows at a rate of
water vapor is heated in a closed rigid tank from saturated vapor at 160degc to a final temperature of 400degc.
a projectile is fired at an angle of 62deg from the horizontal with a velocity of 704 ftsec. if it lands 4.75 seconds
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